EP 0495044 B1 19980923 - COMPUTER NEURAL NETWORK PROCESS MEASUREMENT AND CONTROL SYSTEM AND METHOD
Title (en)
COMPUTER NEURAL NETWORK PROCESS MEASUREMENT AND CONTROL SYSTEM AND METHOD
Title (de)
NEURONALES RECHNERNETZWERK ZUM MESSEN UND STEUERN EINES PROZESSES UND VERFAHREN DAFÜR
Title (fr)
PROCEDE ET SYSTEME DE COMMANDE ET DE MESURE DE PROCESSUS PAR RESEAU NEURONAL INFORMATISE
Publication
Application
Priority
- US 9105259 W 19910725
- US 56309590 A 19900803
Abstract (en)
[origin: WO9202866A1] A computer neural network process control system and method provides predicted values to a controller used to control a process for producing a product. The predicted value is produced by a neural network provided with stored input data from a historical database. The neural network is configured by a developer using a neural network configuration stage and step. The neural network is trained using training data stored in the historical database, which is compared with the predicted value produced by the neural network using input data obtained at a time associated with the time of the training data. An error signal is produced by the comparison of the predicted value with the training data, the error signal is used to train the neural network, and is also used to determine (1) whether the predicted values of the neural network should continue to be used by the controller, and (2) to retrain the network. Predicted values are thus produced by the neural network which have a close correlation to the training values training data.
IPC 1-7
IPC 8 full level
G05B 13/02 (2006.01)
CPC (source: EP US)
G05B 13/027 (2013.01 - EP US); Y10S 706/906 (2013.01 - US)
Citation (examination)
WO 9110961 A1 19910725 - AUTOMATION TECHNOLOGY INC [US]
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
WO 9202866 A1 19920220; CA 2066458 A1 19920204; CA 2066458 C 20030422; DE 69130253 D1 19981029; DE 69130253 T2 19990520; EP 0495044 A1 19920722; EP 0495044 B1 19980923; US 5282261 A 19940125
DOCDB simple family (application)
US 9105259 W 19910725; CA 2066458 A 19910725; DE 69130253 T 19910725; EP 91913785 A 19910725; US 56309590 A 19900803